115例喉狭窄儿童进行了各种喉扩张术,平均年龄在15岁以下(1个月～19岁),46例体重小于10kg,最小患儿体重为3300g,45例(39%)为先天性声门下纤维组织增生、环状软骨、气管碰伤或环状软骨发育异常。其中2例为严重狭窄,1例伴有重度披裂间区缺损。70例后天性喉狭窄,患儿均有喉外伤史67% A total of 115 laryngeal stenoses were performed in all patients under the age of 15 years (range, 1 month to 19 years), 46 with a body weight of less than 10 kg, and a minimum of 3300 g with 45 (39%) congenital Subglottic fibroplasia, cricoid cartilage, tracheal buildup, or ring-like cartilage dysplasia. Two of them were severe stenosis, and one was accompanied by severe perforation. 70 cases of acquired laryngeal stenosis, children had a history of laryngeal trauma 67%